On Tue, 2012-01-31 at 18:34 +0800, Wu Fengguang wrote:> I'd like to propose a sister patch on the write part. It may not be> as easy to measure any performance impacts of it, but I'll try.I did think about it, the write case doesn't matter because we didn't doreal IO there.I can do another patch to cleanup the code (moving it to direct_io),sounds ok?